Frankly, this topic is tiresome.
All the confirmation of what makes Chronos 2-A is in his profie and previous upgrade threads featuring the character, something that has been covered over and over. The Space-Time, 4-Dimensional spectrum is completely irrelevant to him, and all of past and future in all timelines is just a part of him, as he transcends all timelines and space-time. He also transcends the Olympian Gods, much like they transcend humans, and Zeus is a 4D being in Cosmos.
Tivanenk (Guy who translates Saint Seiya) thinks he should be High 2-A, and so does The Everlasting, 2-A is very conservative.
As for God, the movie writes him as the supreme God, as he is called the creator, and even pulling direct lines from the Bible (Isaiah 14). While he is never directly called Omnipotent or stated to be infinitely above Lucifer, it is very clear that he is written a the all-mighty god above all others, and likely some sort of Supreme Being.
Neither ranking is said to be 100% certain in the profiles, but they are not without justification.
I admit that if this was a baffling rating like having Goku at 2-C or above, I'd raise an eyebrow, but this seems acceptable.